I use the future before I put on the decals. This gives them a nice smooth surface to adhere to. Depending on the decal thickness, I then either use more future to seal the decals (if they are thick), or go straight to my final finish (gloss, semi-gloss, or flat). Experiment and see what works for you.
I joined the Navy to see the world.....
and forgot that it was over 75% water.
Bull